Sony STR-KS2000 Service Manual - Page 37

Dcac 2000 Board, Ic2501, Ic2502 - schematic

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6-28. SCHEMATIC DIAGRAM - DCAC (2000) Board - • See page 41 for IC Block Diagrams. 1 2 3 4 5 A DCAC (2000) BOARD B R2504 2.2k C2505 10 R2506 2.2k C 50V C2519 1 50V C2520 10 50V C2521 10 50V C2522 2200p 6 7 8 9 C2524 47 25V IC2502 +3.3V REGULATOR IC2502 BAA33BC0FP-E2 3.3 C2525 0.1 OUT VCC 3 GND 1 2 5.1 C2528 0.1 C2523 47 16V C2526 10 50V FB2500 C2529 47 25V R2519 1k R2501 2.2k J2500 AUTO CAL D MIC C2501 0.1 C2502 10 50V E C2503 10 50V R2503 220k 1 2.4 Q2500 0.4 2SC2712-GL-TE85L LINE AMP C2504 100p 3.3 V+ 0.7 0.7 0 N 0 0 7 6 5 4 3 21 0 IC B/D R2518 10k C2530 2200p OUT2 OUT1 DCC2 DCC1 IN1 V+1 REG GND IN2 V+2 GV STBY 3.5 3.3 0 8 9 10 11 12 13 14 0 1.2 IC2501 MIC AMP IC2501 NJM2173AV(TE2) STR-KS2000 10 11 CN2000 7P 1 3 4 5 6 7 DCAC_MIC_L GND DCAC_MIC_R MIC_ON/OFF +5V GND G MAIN BOARD (4/10) CNP500 (Page 21) E EB2500 (CHASSIS) F C2500 0.1 D2500 MA111-TX C2506 2200p R2507 68k R2508 1k G R2513 10k C2517 2200p C2513 0.1 C2514 47 25V C2515 10 50V C2516 10 50V C2518 47 16V R2514 10k STR-KS2000 37 37

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STR-KS2000
STR-KS2000
37
37
• See page 41 for IC Block Diagrams.
6-28. SCHEMATIC
DIAGRAM
- DCAC (2000) Board -
BOARD
G
MAIN
(4/10)
CNP500
IC B/D
3.3
5.1
3.3
2.4
0.4
1
0
3.5
3.3
0
0
1.2
0
0
0
0.7
0.7
2.2k
R2504
2.2k
R2506
100p
C2504
FB2500
2.2k
R2501
10k
R2513
2200p
C2530
2200p
C2506
220k
R2503
1k
R2519
1k
R2508
68k
R2507
14
13
12
11
10
9
8
7
6
5
4
3
2
1
NJM2173AV(TE2)
IC2501
OUT1
DCC1
IN1
V+1
REG
N
GND
V+
STBY
GV
V+2
IN2
DCC2
OUT2
0.1
C2500
2SC2712-GL-TE85L
Q2500
10k
R2518
2200p
C2522
10k
R2514
C2517
2200p
0.1
C2501
0.1
C2525
0.1
C2513
16V
C2518
47
16V
47
C2523
J2500
0.1
C2528
25V
47
C2514
25V
47
C2529
50V
1
C2519
50V
10
C2502
50V
10
C2503
50V
10
C2505
50V
10
C2515
50V
C2516
10
50V
10
C2520
50V
10
C2521
50V
10
C2526
MA111-TX
D2500
1
3
4
5
6
7
CN2000
7P
DCAC_MIC_L
GND
DCAC_MIC_R
MIC_ON/OFF
+5V
GND
E
EB2500
25V
47
C2524
DCAC (2000) BOARD
IC2501
MIC AMP
A
10
1
2
B
11
C
7
8
F
9
6
4
3
G
D
5
E
1
2
3
IC2502
+3.3V REGULATOR
BAA33BC0FP-E2
IC2502
VCC
GND
OUT
(CHASSIS)
AUTO
CAL
MIC
LINE AMP
(Page 21)